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  1. #include <stdio.h>
  2.  
  3. #define N 3
  4.  
  5. struct student {
  6.     int id;    /* 学籍番号 */
  7.     int eng;   /* 英語の成績 */
  8.     int math;  /* 数学の成績 */
  9.     int sci;   /* 理科の成績 */
  10.     int total; /* 合計点（追加箇所） */
  11. };
  12.  
  13.  
  14. void swap(struct student *p1, struct student *p2) {
  15.     struct student temp = *p1;
  16.     *p1 = *p2;
  17.     *p2 = temp;
  18. }
  19.  
  20.  
  21. void printSeiseki(struct student s[]) {
  22.     int i;
  23.     for (i = 0; i < N; i++) {
  24.  
  25.         printf("%7d %5d %5d %5d %10d\n", s[i].id, s[i].eng, s[i].math, s[i].sci, s[i].total);
  26.     }
  27. }
  28.  
  29. int main() {
  30.     int i, j;
  31.     struct student s[N] = {
  32.         {17001, 60, 100, 20},
  33.         {17002, 90, 40, 80},
  34.         {17003, 20, 30, 50}
  35.     };
  36.  
  37.  
  38.     for (i = 0; i < N; i++) {
  39.         s[i].total = s[i].eng + s[i].math + s[i].sci;
  40.     }
  41.  
  42.     /* ソート（totalの昇順に書き換え、swapの呼び出し方を変更） */
  43.     for (i = 1; i < N; i++) {
  44.         for (j = 0; j < N - i; j++) {
  45.  
  46.             if (s[j].total > s[j + 1].total) {
  47.  
  48.                 swap(&s[j], &s[j + 1]);
  49.             }
  50.         }
  51.     }
  52.  
  53.     /* 成績のプリント */
  54.     printSeiseki(s);
  55.  
  56.     return 0;
  57. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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Standard input is empty
stdout
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  17003    20    30    50        100
  17001    60   100    20        180
  17002    90    40    80        210
https://ideone.com/sPXEZI
language:
C (gcc 8.3)
created:
4 hours ago
visibility:
public

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